/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail team
+ * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#ifdef HAVE_CONFIG_H
# include "config.h"
+#include "claws-features.h"
#endif
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
#include "defs.h"
+#include <stdlib.h>
#include <glib.h>
#include <glib/gi18n.h>
+#include <errno.h>
+#include <pthread.h>
#include "claws.h"
#include "utils.h"
#include "ssl.h"
#include "ssl_certificate.h"
+#include "hooks.h"
+
+#if GNUTLS_VERSION_NUMBER <= 0x020b00
+#include <gcrypt.h>
+GCRY_THREAD_OPTION_PTHREAD_IMPL;
+#endif
#ifdef HAVE_LIBETPAN
#include <libetpan/mailstream_ssl.h>
#ifdef USE_PTHREAD
typedef struct _thread_data {
-#ifdef USE_OPENSSL
- SSL *ssl;
-#else
- gnutls_session ssl;
-#endif
+ gnutls_session_t ssl;
gboolean done;
} thread_data;
#endif
+#if GNUTLS_VERSION_NUMBER <= 0x020c00
+static int gnutls_client_cert_cb(gnutls_session_t session,
+ const gnutls_datum_t *req_ca_rdn, int nreqs,
+ const gnutls_pk_algorithm_t *sign_algos,
+ int sign_algos_length, gnutls_retr_st *st)
+#else
+static int gnutls_cert_cb(gnutls_session_t session,
+ const gnutls_datum_t *req_ca_rdn, int nreqs,
+ const gnutls_pk_algorithm_t *sign_algos,
+ int sign_algos_length, gnutls_retr2_st *st)
+#endif
+{
+ SSLClientCertHookData hookdata;
+ SockInfo *sockinfo = (SockInfo *)gnutls_session_get_ptr(session);
+ gnutls_certificate_type_t type = gnutls_certificate_type_get(session);
+ gnutls_x509_crt_t crt;
+ gnutls_x509_privkey_t key;
+
+ st->ncerts = 0;
+
+ hookdata.account = sockinfo->account;
+ hookdata.cert_path = NULL;
+ hookdata.password = NULL;
+ hookdata.is_smtp = sockinfo->is_smtp;
+ hooks_invoke(SSLCERT_GET_CLIENT_CERT_HOOKLIST, &hookdata);
+
+ if (hookdata.cert_path == NULL) {
+ g_free(hookdata.password);
+ return 0;
+ }
-#ifdef USE_OPENSSL
-static SSL_CTX *ssl_ctx;
+ sockinfo->client_crt = ssl_certificate_get_x509_from_pem_file(hookdata.cert_path);
+ sockinfo->client_key = ssl_certificate_get_pkey_from_pem_file(hookdata.cert_path);
+ if (!(sockinfo->client_crt && sockinfo->client_key)) {
+ /* try pkcs12 format */
+ ssl_certificate_get_x509_and_pkey_from_p12_file(hookdata.cert_path, hookdata.password,
+ &crt, &key);
+ sockinfo->client_crt = crt;
+ sockinfo->client_key = key;
+ }
+
+ if (type == GNUTLS_CRT_X509 && sockinfo->client_crt && sockinfo->client_key) {
+ st->ncerts = 1;
+#if GNUTLS_VERSION_NUMBER <= 0x020c00
+ st->type = type;
+#else
+ st->key_type = type;
#endif
+ st->cert.x509 = &(sockinfo->client_crt);
+ st->key.x509 = sockinfo->client_key;
+ st->deinit_all = 0;
+ g_free(hookdata.password);
+ return 0;
+ }
+ g_free(hookdata.password);
+ return 0;
+}
-void ssl_init(void)
+const gchar *claws_ssl_get_cert_file(void)
{
-#ifdef USE_OPENSSL
- SSL_METHOD *meth;
+#ifndef G_OS_WIN32
+ const char *cert_files[]={
+ "/etc/pki/tls/certs/ca-bundle.crt",
+ "/etc/certs/ca-bundle.crt",
+ "/etc/ssl/ca-bundle.pem",
+ "/usr/share/ssl/certs/ca-bundle.crt",
+ "/etc/ssl/certs/ca-certificates.crt",
+ "/usr/local/ssl/certs/ca-bundle.crt",
+ "/etc/apache/ssl.crt/ca-bundle.crt",
+ "/usr/share/curl/curl-ca-bundle.crt",
+ "/usr/share/curl/curl-ca-bundle.crt",
+ "/usr/lib/ssl/cert.pem",
+ NULL};
+ int i;
+#endif
- /* Global system initialization*/
- SSL_library_init();
- SSL_load_error_strings();
+ /* We honor this environment variable on all platforms. */
+ if (g_getenv("SSL_CERT_FILE"))
+ return g_getenv("SSL_CERT_FILE");
-#ifdef HAVE_LIBETPAN
- mailstream_openssl_init_not_required();
-#endif
+#ifndef G_OS_WIN32
+ for (i = 0; cert_files[i]; i++) {
+ if (is_file_exist(cert_files[i]))
+ return cert_files[i];
+ }
+ return NULL;
+#else
+ return w32_get_cert_file();
+#endif
+}
- /* Create our context*/
- meth = SSLv23_client_method();
- ssl_ctx = SSL_CTX_new(meth);
+const gchar *claws_ssl_get_cert_dir(void)
+{
+ const char *cert_dirs[]={
+ "/etc/pki/tls/certs",
+ "/etc/certs",
+ "/usr/share/ssl/certs",
+ "/etc/ssl/certs",
+ "/usr/local/ssl/certs",
+ "/etc/apache/ssl.crt",
+ "/usr/share/curl",
+ "/usr/lib/ssl/certs",
+ NULL};
+ int i;
+
+ if (g_getenv("SSL_CERT_DIR"))
+ return g_getenv("SSL_CERT_DIR");
+#ifndef G_OS_WIN32
+ for (i = 0; cert_dirs[i]; i++) {
+ if (is_dir_exist(cert_dirs[i]))
+ return cert_dirs[i];
+ }
+ return NULL;
+#else
+ return NULL;
+#endif
+}
- /* Set default certificate paths */
- SSL_CTX_set_default_verify_paths(ssl_ctx);
-
-#if (OPENSSL_VERSION_NUMBER < 0x0090600fL)
- SSL_CTX_set_verify_depth(ssl_ctx,1);
+void ssl_init(void)
+{
+#if GNUTLS_VERSION_NUMBER <= 0x020b00
+ gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
#endif
-#else
+#ifdef HAVE_LIBETPAN
+ mailstream_gnutls_init_not_required();
+#endif
gnutls_global_init();
-#endif
}
void ssl_done(void)
{
-#if USE_OPENSSL
- if (!ssl_ctx)
- return;
-
- SSL_CTX_free(ssl_ctx);
-#else
gnutls_global_deinit();
-#endif
}
#ifdef USE_PTHREAD
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
-#ifdef USE_OPENSSL
- result = SSL_connect(td->ssl);
-#else
do {
result = gnutls_handshake(td->ssl);
} while (result == GNUTLS_E_AGAIN || result == GNUTLS_E_INTERRUPTED);
-#endif
+
td->done = TRUE; /* let the caller thread join() */
return GINT_TO_POINTER(result);
}
#endif
-#ifdef USE_OPENSSL
-static gint SSL_connect_nb(SSL *ssl)
-#else
-static gint SSL_connect_nb(gnutls_session ssl)
-#endif
+static gint SSL_connect_nb(gnutls_session_t ssl)
{
-#if (defined USE_PTHREAD && ((defined __GLIBC__ && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3))) || !defined __GLIBC__))
+ int result;
+#ifdef USE_PTHREAD
thread_data *td = g_new0(thread_data, 1);
pthread_t pt;
+ pthread_attr_t pta;
void *res = NULL;
-#ifdef USE_GNUTLS
- int result;
-#endif
time_t start_time = time(NULL);
gboolean killed = FALSE;
/* try to create a thread to initialize the SSL connection,
* fallback to blocking method in case of problem
*/
- if (pthread_create(&pt, PTHREAD_CREATE_JOINABLE,
- SSL_connect_thread, td) != 0) {
-#ifdef USE_OPENSSL
- return SSL_connect(ssl);
-#else
+ if (pthread_attr_init(&pta) != 0 ||
+ pthread_attr_setdetachstate(&pta, PTHREAD_CREATE_JOINABLE) != 0 ||
+ pthread_create(&pt, &pta, SSL_connect_thread, td) != 0) {
do {
result = gnutls_handshake(td->ssl);
} while (result == GNUTLS_E_AGAIN || result == GNUTLS_E_INTERRUPTED);
-#endif
+ return result;
}
debug_print("waiting for SSL_connect thread...\n");
while(!td->done) {
GPOINTER_TO_INT(res));
return GPOINTER_TO_INT(res);
-#else
-#ifdef USE_OPENSSL
- return SSL_connect(ssl);
-#else
+#else /* USE_PTHREAD */
do {
- result = gnutls_handshake(td->ssl);
+ result = gnutls_handshake(ssl);
} while (result == GNUTLS_E_AGAIN || result == GNUTLS_E_INTERRUPTED);
#endif
-#endif
}
-gboolean ssl_init_socket(SockInfo *sockinfo)
+gnutls_x509_crt_t *ssl_get_certificate_chain(gnutls_session_t session, gint *list_len)
{
- return ssl_init_socket_with_method(sockinfo, SSL_METHOD_SSLv23);
-}
+ const gnutls_datum_t *raw_cert_list;
+ gnutls_x509_crt_t *certs = NULL;
+ gboolean result = TRUE;
-#ifdef USE_GNUTLS
-static const gchar *ssl_get_cert_file(void)
-{
- if (g_getenv("SSL_CERT_FILE"))
- return g_getenv("SSL_CERT_FILE");
-#ifndef G_OS_WIN32
- return "/etc/ssl/certs/ca-certificates.crt";
-#else
- return "put_what_s_needed_here";
-#endif
-}
-#endif
+ *list_len = -1;
+ if (!session)
+ return NULL;
-gboolean ssl_init_socket_with_method(SockInfo *sockinfo, SSLMethod method)
-{
-#ifdef USE_OPENSSL
- X509 *server_cert;
- SSL *ssl;
+ raw_cert_list = gnutls_certificate_get_peers(session, list_len);
- ssl = SSL_new(ssl_ctx);
- if (ssl == NULL) {
- g_warning(_("Error creating ssl context\n"));
- return FALSE;
- }
+ if (raw_cert_list && gnutls_certificate_type_get(session) == GNUTLS_CRT_X509) {
+ int i = 0;
- switch (method) {
- case SSL_METHOD_SSLv23:
- debug_print("Setting SSLv23 client method\n");
- SSL_set_ssl_method(ssl, SSLv23_client_method());
- break;
- case SSL_METHOD_TLSv1:
- debug_print("Setting TLSv1 client method\n");
- SSL_set_ssl_method(ssl, TLSv1_client_method());
- break;
- default:
- break;
- }
+ if (*list_len > 128)
+ *list_len = 128;
- SSL_set_fd(ssl, sockinfo->sock);
- if (SSL_connect_nb(ssl) == -1) {
- g_warning(_("SSL connect failed (%s)\n"),
- ERR_error_string(ERR_get_error(), NULL));
- SSL_free(ssl);
- return FALSE;
- }
+ certs = g_malloc(sizeof(gnutls_x509_crt_t) * (*list_len));
- /* Get the cipher */
+ for(i = 0 ; i < (*list_len) ; i++) {
+ int r;
- debug_print("SSL connection using %s\n", SSL_get_cipher(ssl));
+ gnutls_x509_crt_init(&certs[i]);
+ r = gnutls_x509_crt_import(certs[i], &raw_cert_list[i], GNUTLS_X509_FMT_DER);
+ if (r < 0) {
+ g_warning("cert get failure: %d %s", r, gnutls_strerror(r));
- /* Get server's certificate (note: beware of dynamic allocation) */
- if ((server_cert = SSL_get_peer_certificate(ssl)) == NULL) {
- debug_print("server_cert is NULL ! this _should_not_ happen !\n");
- SSL_free(ssl);
- return FALSE;
- }
+ result = FALSE;
+ i--;
+ break;
+ }
+ }
+ if (!result) {
+ for (; i >= 0; i--)
+ gnutls_x509_crt_deinit(certs[i]);
+ g_free(certs);
+ *list_len = -1;
- if (!ssl_certificate_check(server_cert, sockinfo->canonical_name, sockinfo->hostname, sockinfo->port)) {
- X509_free(server_cert);
- SSL_free(ssl);
- return FALSE;
+ return NULL;
+ }
}
+ return certs;
+}
- X509_free(server_cert);
- sockinfo->ssl = ssl;
-#else
- gnutls_session session;
- int r;
- const int cipher_prio[] = { GNUTLS_CIPHER_AES_128_CBC,
- GNUTLS_CIPHER_3DES_CBC,
- GNUTLS_CIPHER_AES_256_CBC,
- GNUTLS_CIPHER_ARCFOUR_128, 0 };
- const int kx_prio[] = { GNUTLS_KX_DHE_RSA,
- GNUTLS_KX_RSA,
- GNUTLS_KX_DHE_DSS, 0 };
- const int mac_prio[] = { GNUTLS_MAC_SHA1,
- GNUTLS_MAC_MD5, 0 };
- const int proto_prio[] = { GNUTLS_TLS1,
- GNUTLS_SSL3, 0 };
- const gnutls_datum *raw_cert_list;
- unsigned int raw_cert_list_length;
- gnutls_x509_crt cert = NULL;
- guint status;
+gboolean ssl_init_socket(SockInfo *sockinfo)
+{
+ gnutls_session_t session;
+ int r, i;
+ unsigned int cert_list_length;
+ gnutls_x509_crt_t *certs = NULL;
gnutls_certificate_credentials_t xcred;
if (gnutls_certificate_allocate_credentials (&xcred) != 0)
r = gnutls_init(&session, GNUTLS_CLIENT);
if (session == NULL || r != 0)
return FALSE;
-
- gnutls_set_default_priority(session);
- gnutls_protocol_set_priority (session, proto_prio);
- gnutls_cipher_set_priority (session, cipher_prio);
- gnutls_kx_set_priority (session, kx_prio);
- gnutls_mac_set_priority (session, mac_prio);
- gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+ if (sockinfo->gnutls_priority && strlen(sockinfo->gnutls_priority)) {
+ r = gnutls_priority_set_direct(session, sockinfo->gnutls_priority, NULL);
+ debug_print("Setting GnuTLS priority to %s, status = %d\n",
+ sockinfo->gnutls_priority, r);
+ }
+#ifdef GNUTLS_VERSION_NUMBER < 0x030400
+ else {
+ gnutls_priority_set_direct(session, "NORMAL:-VERS-SSL3.0", NULL);
+ }
+#endif
+ gnutls_record_disable_padding(session);
- r = gnutls_certificate_set_x509_trust_file(xcred, ssl_get_cert_file(), GNUTLS_X509_FMT_PEM);
- if (r < 0)
- g_warning("Can't read SSL_CERT_FILE %s: %s\n",
- ssl_get_cert_file(),
- gnutls_strerror(r));
+ gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+ if (claws_ssl_get_cert_file()) {
+ r = gnutls_certificate_set_x509_trust_file(xcred, claws_ssl_get_cert_file(), GNUTLS_X509_FMT_PEM);
+ if (r < 0)
+ g_warning("Can't read SSL_CERT_FILE '%s': %s",
+ claws_ssl_get_cert_file(),
+ gnutls_strerror(r));
+ } else {
+ debug_print("Can't find SSL ca-certificates file\n");
+ }
gnutls_certificate_set_verify_flags (xcred, GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT);
- gnutls_transport_set_ptr(session, (gnutls_transport_ptr)
- sockinfo->sock);
+ gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) GINT_TO_POINTER(sockinfo->sock));
+ gnutls_session_set_ptr(session, sockinfo);
+#if GNUTLS_VERSION_NUMBER <= 0x020c00
+ gnutls_certificate_client_set_retrieve_function(xcred, gnutls_client_cert_cb);
+#else
+ gnutls_certificate_set_retrieve_function(xcred, gnutls_cert_cb);
+#endif
+
+ gnutls_dh_set_prime_bits(session, 512);
if ((r = SSL_connect_nb(session)) < 0) {
g_warning("SSL connection failed (%s)", gnutls_strerror(r));
+ gnutls_certificate_free_credentials(xcred);
gnutls_deinit(session);
return FALSE;
}
/* Get server's certificate (note: beware of dynamic allocation) */
- raw_cert_list = gnutls_certificate_get_peers(session, &raw_cert_list_length);
+ certs = ssl_get_certificate_chain(session, &cert_list_length);
- if (!raw_cert_list
- || gnutls_certificate_type_get(session) != GNUTLS_CRT_X509
- || (r = gnutls_x509_crt_init(&cert)) < 0
- || (r = gnutls_x509_crt_import(cert, &raw_cert_list[0], GNUTLS_X509_FMT_DER)) < 0) {
- g_warning("cert get failure: %d %s\n", r, gnutls_strerror(r));
+ if (!certs) {
+ gnutls_certificate_free_credentials(xcred);
gnutls_deinit(session);
return FALSE;
}
- r = gnutls_certificate_verify_peers2(session, &status);
-
- if (!ssl_certificate_check(cert, status, sockinfo->canonical_name, sockinfo->hostname, sockinfo->port)) {
- gnutls_x509_crt_deinit(cert);
+ if (!ssl_certificate_check_chain(certs, cert_list_length, sockinfo->hostname, sockinfo->port,
+ sockinfo->ssl_cert_auto_accept)) {
+ for (i = 0; i < cert_list_length; i++)
+ gnutls_x509_crt_deinit(certs[i]);
+ g_free(certs);
+ gnutls_certificate_free_credentials(xcred);
gnutls_deinit(session);
return FALSE;
}
- gnutls_x509_crt_deinit(cert);
+ for (i = 0; i < cert_list_length; i++)
+ gnutls_x509_crt_deinit(certs[i]);
+ g_free(certs);
sockinfo->ssl = session;
-#endif
+ sockinfo->xcred = xcred;
return TRUE;
}
void ssl_done_socket(SockInfo *sockinfo)
{
if (sockinfo && sockinfo->ssl) {
-#ifdef USE_OPENSSL
- SSL_free(sockinfo->ssl);
-#else
+ if (sockinfo->xcred)
+ gnutls_certificate_free_credentials(sockinfo->xcred);
gnutls_deinit(sockinfo->ssl);
-#endif
+ if (sockinfo->client_crt)
+ gnutls_x509_crt_deinit(sockinfo->client_crt);
+ if (sockinfo->client_key)
+ gnutls_x509_privkey_deinit(sockinfo->client_key);
+ sockinfo->client_key = NULL;
+ sockinfo->client_crt = NULL;
+ sockinfo->xcred = NULL;
sockinfo->ssl = NULL;
}
}
-#endif /* USE_OPENSSL */
+#endif /* USE_GNUTLS */
projects / claws.git / blobdiff